50 Crucifere—Erysimnun. 
1l. ERYSIMUM. 
Tall biennial or perennial herbs with narrow entire leaves 
and yellow or orange flowers. lateral sepals saccate at the 
base. Pod elongated, roundish or 4-angled; seeds not winged, 
oblong, in one row. Europe, Asia, and North America, Name 
from gpv@, to draw blisters. 
1. £. Peroffskiimwin.—This showy annual is a great favour- 
ite on account of its deep reddish orange-coloured blossoms 
and neat habit. From the Caucasus. . dsper, syn. E. 
Arkansdnum, is similar to the last, but with lemon-coloured 
flowers. EH. Marschallidnwm is another Caucasian species, with 
bright yellow flowers. 
12. BRASSICA. 
We introduce this genus merely to notice the varieties with 
ornamental foliage, imported some years ago from China. Their 
habit recalls somewhat that of a palm, all the leaves being 
tufted on the summit of a tall simple stem. But it is the 
form and colour of the leaves that gives them their greatest 
charm. The leaves are variously cut, dissected, feathered, 
frilled, and curled, and exhibit every shade of rose and violet 
purple, and in some varieties variegated with white. 
§ 2. Pod nearly or quite as broad as long, dehiscing through- 
out its whole length, and compressed at right angles to the 
septum or partition. 
13. IONOPSIDIUM. 
Miniature glabrous annuals. Leaves sessile or petiolate, 
spathulate or orbiculate, entire or 3-lobed. Flowers small, 
white, violet, lilac, or flesh-coloured, on long peduncles. Sepals 
spreading, equal at the base. Stamens free. Pouch broadly 
oblong, laterally compressed, with 2 or 3 seeds in each cell. 
Only two species are known. 
1. I. acaule.—An exceedingly pretty little plant, not more 
than 3 inches high. Flowers lilac, or white tinged with violet. 
Native of Portugal. 
14. IBERIS, 
Annual or herbaceous or shrubby diffuse perennials. Leaves 
entire or pinnatifid, often fleshy. Flowers racemose or corym- 
bose, white or purple. Sepals equal at the base. Petals un- 
